Ventilating-chimney.



G. T. BELL.

VENTILATING CHIMNEY.

APPLICATION FILED 050.2. 1915.

mmvron Geo/:73 7. 56/! ATTORNEYS Patented. Mar. 6, 1917.

2 SHEETS-SHEET 1 G. T. BELL.

VENTILATING CHIMNEY.

APPLICATION FILED DEC. 2. 1915.

2 SHEE T$-SHEET 2.

INVENTOR 56/! A TTORNEYS Patenfed Mar. 6, 1917.

STATES PATENTOFFICE.

GEORGE THOMAS BELL, 0F COLUMBUS, OHIO, ASSIGNOR OF ONE-HALF TO WILLIAM K.

COOKSEY, OF COLUMBUS, OHIO.

vEN'rILArme-cnmmar.

Specification of Letters Patent.

Patented Mar. 6, 1917.

Application filed December 2, 1915. Serial No. 64,691.

- tion.

My invention relates to a chimney having means whereby to ventilate the structure in connection with which the chimney 1s employed and more particularly, the invention relates to a chimney involving an inner and an outer series of tiles, the inner tiles defining a flue, or fines, and the two series of tiles being separated to produce air circulating spaces in the chimney at the sides of the Objects of the invention are to improve chimneys of the indicated character in various particulars, whereby to rovide a strong structure in which tight joints are insured, and to provide a novel arrangement of the ventilating openings including a cap supported in a novel manner and beneath which the air passes from the air chambers of the chimney.

A further object of the invention is to pro,- vide a tile chimney on which plaster can be readily applied and having a novel arrangement of elements available for securing to the chimney parts of mantels, moldings, base-boards, etc.

Other objects of the invention will appear from the specific description following.

- Reference isto be had to the accompanying drawings forming part of this specification in WhlCh similar reference characters indicate corresponding parts in all the views.

Figure 1 is a perspective view of a chimney constructed in accordance with my invention, parts being broken away;

Fig. 2 is a vertical section of the chimney;

Fig. 3 is a vertical section in a plane at right angles to Fig. 2;

Fig. 4 is a horizontal section on the line 4-4., Fig. 2;

Fig. 5 is a horizontal section .on the line 55, Fig. 3.

Fig. 6 is a horizontal section on the line 6-6, Fig. 2; and

Fig. 7 is a perspective view of one of the outer tiles,'the view being given to show the roughened surface of the tile.

In constructing a practical embodiment of my invention in accordance with. the illustrated example, an inner series of tiles 10 and an outer series of tiles 11 are erected to produce within the tiles 10 a flue or flues 12, and produce air spaces 13 between the inner and outer tiles, said air s aces being continuous to the top of the c inmey except as the spaces are interrupted by transverse barriers 14 for a purpose hereinafter referred to. The outer faces of the outer tiles 11 at all the floors are suitably roughened as indicated in Fig. 7 to receive plaster. The

another at the four sides of the chimney and the joints 15 of the slabs are formed by producing at the upper and lower edges thereof V-shaped grooves and corresponding V-shaped projections respectively. The V-shaped joints facilitate the accurate as sembling of the tiles and provide for a tight joint being made with facility. The numeral 16 indicates portions of successive floors in a building, and 17 in (Fig. 1) indicates a roof which may receive any suitable form of flashing (not shown).

The spacing of the inner and outer tiles 10, 11 is effected by forming vertical ribs 18, 18 on the outer sides of the inner tiles against which ribs the outer tiles are laid. The ribs 18 are formed centrally on the tiles 10 at two opposite sides while the tiles on the remaining two sides have end ribs 18. The ribs 18 are omitted from the uppermost inner tiles 10 so that the said ribs 18 thus terminate short of the chimney top but extend above the uppermost outer tiles 11 as clearly seen in Figs. 2 and 3 and thereby form shoulders on which is received a cap 19 having a dependingflange' 20 which is positioned outward from the outer tiles 11 to produce outlet openings communicating with the air chambers 13. The said outlets beneath the cap 19 may be covered with wire netting 21 to exclude birds. In the example shown duplicate flues 12 are presented by a central vertical partition 22 In order to utilize the air chambers 13 for ventilation, a fresh air inlet is provided in the chimney near the base thereof which may be covered by wire netting 23. At the back of the chimney or side opposite the fresh air inlet 23 a slide 24 may be fitted-in the outer tiling" 11 to afford access to the base of the chimney for cleaning. A covering 25 of asbestos may be applied to the outer side of the inner tiling 10.at the opening 23 and back of the slide 24. At each floor and adjacent to the floor, the chimney is formed with fresh air outlets 26 directly beneath the barriers 14 for the discharge of fresh air to the rooms. Near theceiling of the room foul air inlets 27 are formed leading inward from the roomsto the air cham-. bers 13. It is to be observed that the fresh air outlets 26 are at one side of the chimney while the foul air inlets 27 are at an opposite side of the chimney so that the fresh air passages are independent of the foul air passages.

. At any desired floor, formed with tapered holes 28, 29 through the inner and outer tiles to receive a tapered thimble 30, Fig. 2, for the accommodation of a stove-pipe.

In order to secure to the, chimney members of a mantel, molding, base-board, or the like, I provide on the chimney at one or more floors, a series of vertical wood strips 31. These strips 31 are dove-tailed into vertical grooves 32 (Fig. 5) which extend across a plurality of tiles. The provision of the strips as thus arranged, facilitates the ready. and firm attachment of the mantel or other elements and in addition the strips serve to distribute the strain of the applied part over the several tiles connected by the strips.

The fresh air outlets 26 at the different floors lead from separate 'air passages 13, each with its barrier 14, but all these passages are in communication at the bottom with one another and with the fresh air inlet 23. It will be observed from Fig. 1, that the ribs 18, 18 are interrupted at the level of the inlet 23 as at 18 to establish communication with the difi'erent air passages.

Any suitable surface appearance may be given to the tiles 11 above the roof 17, there being a simulation of brick work in the example shown. I

The described construction insures an effective ventilation; it affords a substantially fire-proof chimney; the ventilating spaces are maintained open and a proper positioning of the cap is insured for the free outlet of air from the chambers 13. 7

Having thus described my invention 1 the chimney may be claim as new, and desire to secure by Letters Patent:

1. A chimney including inner and outer walls, spaced to form vertically ranging air chambers therebetween, and form a line within the inner wall, the inner wall rising higher than the outer wall, the one wall having vertical ribs thereon facing the other wall, said ribs extending above the upper edge of the outer wall, and forming shoulders, and a cap resting on said shoulders and having a depending flange outward from the outer wall, forming outlet openings beneath said flange communicating with the said air chambers, there being inlets in the outer wall leading to the said air chambers 2. A chimney including inner and outer Walls forming a flue within the inner wall and vertical air passages between the walls, exterior ribs on the outer faces of the inner wall extending above the top of the outer wall, and a cap restin on the upper ends of said ribs and exten ing outwardly beyond the outer Wall above the same to provide outlets from the said air passages, there being inlet openings in the outer wall leading to said air passages.

3. A chimney having a smoke flue, double walls forming an air space outside the said flue, there being members dividing the air space into separate vertical air passages at the separate sides of the chimney, one of said passages having inlets at different elevations to carry ofl' foul air, others of the passages having air outlets to discharge air therefrom, the respective outlets being at different elevations, there being a transverse barrier in each passage having an outlet, the barrier being located above the said outlets, the members dividing the air space being interrupted near the base of the chimney establishing communication between the several flues having the outlets, and there being an air inlet adjacent to the said interruption in said members and communicating with the respective air passages.

In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

GEORGE THOMAS BELL.

Witnesses:

D. B. SHARP, J. H. SNYDER. 

